var target = document.querySelector("BODY[codemes-selected-node=7671ab51-2c42-4c9e-a0bd-77e57cbf302e]");
var mask = document.getElementById("codemes_mask_div");
mask.style.left=target.offsetLeft+'px';
mask.style.top=target.offsetTop+'px';
mask.style.height=target.offsetHeight;
mask.style.width=target.offsetWidth;